Harry Potter: Eminence In The Shadow
Moriarty, Transmigrates in the world of harry and awaken a big boss system; which allows him to grow stronger continuously with certain tasks done; and on top of that he finds out that he is the last descendant of the Salazar Slytherin.
with all the stars aligning Moriarty grows into a formidable foe, becoming a true eminence in the shadow.
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